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hardware.py
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hardware.py
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import logging
import os
from time import sleep
from hw_diag.utilities.shell import config_search_param
def set_diagnostics_bt_lte(diagnostics):
devices = {
'BT': '0a12',
'LTE': '2c7c'
}
for dev_type, dev_addr in devices.items():
resp = os.popen('grep 0a12 /sys/bus/usb/devices/*/idVendor').read()
if dev_addr in resp:
diagnostics[dev_type] = True
else:
diagnostics[dev_type] = False
return diagnostics
def detect_ecc(diagnostics):
# The order of the values in the lists is important!
# It determines which value will be available for which key
commands = [
'i2cdetect -y 1'
]
parameters = ["60 --"]
keys = ["ECC"]
for (command, param, key) in zip(commands, parameters, keys):
try:
diagnostics[key] = config_search_param(command, param)
except Exception as e:
logging.error(e)
def get_ethernet_addresses(diagnostics):
# Get ethernet MAC and WIFI address
# The order of the values in the lists is important!
# It determines which value will be available for which key
path_to_files = [
"/sys/class/net/eth0/address",
"/sys/class/net/wlan0/address"
]
keys = ["E0", "W0"]
for (path, key) in zip(path_to_files, keys):
try:
diagnostics[key] = get_mac_addr(path)
except Exception as e:
diagnostics[key] = None
logging.error(e)
def get_rpi_serial(diagnostics):
"""
input:
diagnostics - dict
Possible exceptions:
TypeError - if the path is not str.
FileNotFoundError - "/proc/cpuinfo" not found
PermissionError - No file permissions
Writes the received value to the dictionary
"""
try:
rpi_serial = open("/proc/cpuinfo").readlines()[-2].strip()[10:]
except FileNotFoundError as e:
raise e
except PermissionError as e:
raise e
diagnostics["RPI"] = rpi_serial
def get_mac_addr(path):
"""
input: path to the file with the location of the mac address
output: A string containing a mac address
Possible exceptions:
FileNotFoundError - when the file is not found
PermissionError - in the absence of access rights to the file
TypeError - If the function argument is not a string.
"""
if type(path) is not str:
raise TypeError("The path must be a string value")
try:
file = open(path)
except FileNotFoundError as e:
raise e
except PermissionError as e:
raise e
return file.readline().strip().upper()
def lora_module_test():
"""
Checks the status of the lore module.
Returns true or false.
"""
result = None
while result is None:
try:
# The Pktfwder container creates this file
# to pass over the status.
with open("/var/pktfwd/diagnostics") as data:
lora_status = data.read()
if lora_status == "true":
result = True
else:
result = False
except FileNotFoundError:
# Packet forwarder container hasn't started
sleep(10)
return result